body, div {
    width: 300px;
    max-width: 300px;
    font-size: 18px;
    display: block;
    word-wrap:break-word;
    word-break:normal;
}

p {
    margin:0 auto;
    padding:0;
    width:300px;
    max-width: 300px;
    word-break:normal;
    display: block;
}

/*img {*/
    /*max-width: 300px;*/
/*}*/

img.emoji {
    width: 30px;
    height: 30px;
}